/**
 * hoverIntent r5 // 2007.03.27 // jQuery 1.1.2+
 * <http://cherne.net/brian/resources/jquery.hoverIntent.html>
 * 
 * @param f
 *            onMouseOver function || An object with configuration options
 * @param g
 *            onMouseOut function || Nothing (use configuration options object)
 * @author Brian Cherne <brian@cherne.net>
 */
(function($) {
	$.fn.hoverIntent = function(f, g) {
		var cfg = {
			sensitivity : 7,
			interval : 100,
			timeout : 0
		};
		cfg = $.extend(cfg, g ? {
			over : f,
			out : g
		} : f);
		var cX, cY, pX, pY;
		var track = function(ev) {
			cX = ev.pageX;
			cY = ev.pageY;
		};
		var compare = function(ev, ob) {
			ob.hoverIntent_t = clearTimeout(ob.hoverIntent_t);
			if ((Math.abs(pX - cX) + Math.abs(pY - cY)) < cfg.sensitivity) {
				$(ob).unbind("mousemove", track);
				ob.hoverIntent_s = 1;
				return cfg.over.apply(ob, [ ev ]);
			} else {
				pX = cX;
				pY = cY;
				ob.hoverIntent_t = setTimeout(function() {
					compare(ev, ob);
				}, cfg.interval);
			}
		};
		var delay = function(ev, ob) {
			ob.hoverIntent_t = clearTimeout(ob.hoverIntent_t);
			ob.hoverIntent_s = 0;
			return cfg.out.apply(ob, [ ev ]);
		};
		var handleHover = function(e) {			
			var p = (e.type == "mouseover" ? e.fromElement : e.toElement)
					|| e.relatedTarget;
			while (p && p != this) {
				try {
					p = p.parentNode;
				} catch (e) {
					p = this;
				}
			}
			if (p == this) {
				return false;
			}
			var ev = jQuery.extend({}, e);
			var ob = this;
			if (ob.hoverIntent_t) {
				ob.hoverIntent_t = clearTimeout(ob.hoverIntent_t);
			}
			if (e.type == "mouseover") {
				pX = ev.pageX;
				pY = ev.pageY;
				$(ob).bind("mousemove", track);
				if (ob.hoverIntent_s != 1) {
					ob.hoverIntent_t = setTimeout(function() {
						compare(ev, ob);
					}, cfg.interval);
				}
			} else {
				$(ob).unbind("mousemove", track);
				if (ob.hoverIntent_s == 1) {
					ob.hoverIntent_t = setTimeout(function() {
						delay(ev, ob);
					}, cfg.timeout);
				}
			}
		};
		return this.mouseover(handleHover).mouseout(handleHover);
	};
})(jQuery);